Motion Blur Test
Evaluate ghosting, motion blur, and response time with a moving object at configurable speeds.
What to look for
- Ghosting: A shadow trail behind the moving object.
- Overshoot: A bright inverse ghost (corona effect).
- Increase speed to make motion artifacts more visible.
Testing guide
How to test motion blur and ghosting
Moving objects across the screen at a controlled speed is how you see what a spec sheet cannot tell you: whether pixels keep up with motion, whether overdrive is set too aggressively, and how much blur your panel adds on top of that.
Best for
- Judging motion clarity before buying or returning a gaming monitor.
- Finding the overdrive setting that has the least visible artifacts at your refresh rate.
- Comparing motion performance between two monitors under identical conditions.
How to run the test
- 1Set the monitor to its native resolution and highest stable refresh rate first.
- 2Run the moving pattern and follow the object with your eyes, rather than staring at a fixed point.
- 3Look at the trailing edge of the object for smearing, and the leading edge for bright halos.
- 4Change one overdrive setting at a time in the monitor menu and rerun the test to compare.
How to read the result
A dark trail behind the object means pixel transitions are too slow for the current refresh rate.
A bright or white halo in front of the object means overdrive is overshooting and set too high.
Some blur remains on every sample-and-hold display even with perfect pixels, because the eye tracks motion across the full frame duration.
Related tools and guides
Frequently asked questions
What is the difference between motion blur and ghosting?
Ghosting is a distinct trail caused by pixels transitioning too slowly. Motion blur is the broader softening of moving detail, which happens on any sample-and-hold display because the image is held static for the whole frame while your eye keeps moving.
Why do I still see blur on a 1ms monitor?
Because most perceived blur comes from frame persistence, not pixel speed. Even with instant pixel transitions, holding each frame for 16.7ms at 60Hz produces visible blur as your eye tracks across it. Higher refresh rates and backlight strobing reduce this; faster pixels alone do not.
Does a higher refresh rate reduce motion blur?
Yes, significantly. Each frame is displayed for less time, so the eye smears it over a shorter distance. Going from 60Hz to 120Hz roughly halves persistence blur, which is the single biggest improvement most people notice.
Should I turn on my monitor blur reduction setting?
Backlight strobing modes, sometimes labeled 1ms MPRT, ULMB, or blur reduction, genuinely sharpen motion but cost brightness and usually cannot run alongside adaptive sync. Try it and decide whether the trade-off suits how you play.
Why does the test look different in fullscreen?
Browser UI, compositing, and any background load can affect frame pacing. Fullscreen gives the browser the cleanest path to the display, which makes the test far more representative of real motion performance.
Testing guide
How to test motion blur and ghosting
Moving objects across the screen at a controlled speed is how you see what a spec sheet cannot tell you: whether pixels keep up with motion, whether overdrive is set too aggressively, and how much blur your panel adds on top of that.
Best for
- Judging motion clarity before buying or returning a gaming monitor.
- Finding the overdrive setting that has the least visible artifacts at your refresh rate.
- Comparing motion performance between two monitors under identical conditions.
How to run the test
- 1Set the monitor to its native resolution and highest stable refresh rate first.
- 2Run the moving pattern and follow the object with your eyes, rather than staring at a fixed point.
- 3Look at the trailing edge of the object for smearing, and the leading edge for bright halos.
- 4Change one overdrive setting at a time in the monitor menu and rerun the test to compare.
How to read the result
A dark trail behind the object means pixel transitions are too slow for the current refresh rate.
A bright or white halo in front of the object means overdrive is overshooting and set too high.
Some blur remains on every sample-and-hold display even with perfect pixels, because the eye tracks motion across the full frame duration.
Related tools and guides
Frequently asked questions
What is the difference between motion blur and ghosting?
Ghosting is a distinct trail caused by pixels transitioning too slowly. Motion blur is the broader softening of moving detail, which happens on any sample-and-hold display because the image is held static for the whole frame while your eye keeps moving.
Why do I still see blur on a 1ms monitor?
Because most perceived blur comes from frame persistence, not pixel speed. Even with instant pixel transitions, holding each frame for 16.7ms at 60Hz produces visible blur as your eye tracks across it. Higher refresh rates and backlight strobing reduce this; faster pixels alone do not.
Does a higher refresh rate reduce motion blur?
Yes, significantly. Each frame is displayed for less time, so the eye smears it over a shorter distance. Going from 60Hz to 120Hz roughly halves persistence blur, which is the single biggest improvement most people notice.
Should I turn on my monitor blur reduction setting?
Backlight strobing modes, sometimes labeled 1ms MPRT, ULMB, or blur reduction, genuinely sharpen motion but cost brightness and usually cannot run alongside adaptive sync. Try it and decide whether the trade-off suits how you play.
Why does the test look different in fullscreen?
Browser UI, compositing, and any background load can affect frame pacing. Fullscreen gives the browser the cleanest path to the display, which makes the test far more representative of real motion performance.